46 BUILDING FABRIC
Proctor Group membranes used in next generation SIP technology
F
actory-fi tted Proctor Group membranes were part of the successful construction of the Ultrapanel demo house. The building
envelope for a three-bedroom home, from sole plate to ridge, was erected in a single day using Ultrapanel Building Technologies’ Category 2 MMC SIP system.
The system features the vapour permeable
Proctorwrap Refl ect® membrane in its external wall panels. An innovative new cold roof panel features the air permeable, low resistance (APLR) Proctor Air® underlay. The two membranes allow SIP panels to be
delivered straight to site and installed quickly, providing a watertight building envelope in a matter of hours. Panels can be specifi ed to meet a range of regulations and standards (including the Passivhaus standard), while minimising risks associated with moisture. Proctor Group worked closely with Ultrapanel
Building Technologies to establish membrane specifi cations tailored to the off site manufacture of the panels. For example, Proctor Air is usually supplied in 1m wide rolls, to allow for easier manual handling on the roof. However, in a factory environment, the production line can handle heavier products. Proctor Group therefore supplied a bespoke 3 metre wide roll to suit the width of the cold roof panels. Proctor Group’s sales director, John Johnston,
attended the demo house construction day and said: “At a time when labour costs are so expensive, Ultrapanel’s SIP system will likely be very appealing to housing associations, and social housing providers in particular. That could make a real diff erence to whether the UK can achieve its ambitious housing targets.”
proctorgroup.com/products/proctor-air
proctorgroup.com/products/proctorwrap-refl ect
Protected by pending patent application No. 2417868.3 and registered design rights
High level roof ventilation for mortar bedded ridge tiles
Suits all common ridge tile types
WWW.HBDONLINE.CO.UK
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